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Image Analysis Chapter 8&9

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An AP axial coccygeal projection demonstrates the symphysis pubis superimposed over the second and third coccygeal vertebrae. How was the positioning setup mispositioned for such a projection to be obtained?

A.
The central ray was angled too caudally
B.
The patient was rotated
C.
The patient's leg were extended
D.
The central ray was angled too cephalically
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An AP axial coccygeal projection demonstrates the symphysis pubis superimposed over the second and third coccygeal vertebrae. How was the positioning setup mispositioned for such a projection to be obtained?

A.
The central ray was angled too caudally
B.
The patient was rotated
C.
The patient's leg were extended
D.
The central ray was angled too cephalically
D.
The central ray was angled too cephalically
Aligning the _____ parallel with the floor will prevent mandibular superimposition over C1 and C2.

A.
EAM
B.
AML
C.
OML
D.
IPL
B.
AML
For a lateral cervical projection,

1.
The MCP is positioned parallel with the IR.
2.
The IPL is aligned perpendicular to the IR.
3.
The long axis of the cervical vertebral column is aligned with the short axis of the collimated field.
4.
A 72-inch SID is used.

A.
2 and 3 only
B.
1, 2 and 3 only
C.
1 and 3 only
D.
2 and 4 only
D.
2 and 4 only
To obtain open intervertebral disk spaces for an AP axial cervical vertebrae projections when a imaging an upright or kyphotic patient, the CR

A.
Should remain horizontal
B.
Angulation needs to be decreased over that used on a supine patient
C.
Should be angles caudally
D.
Angulation needs to be increased over that used on a supine patient
D.
Angulation needs to be increased over that used on a supine patient
An AP axial cervical projection demonstrates a portion of the third cervical vertebra superimposed over the posterior occipital bone. How should the positioning setup be adjusted to obtain an optimal projection?

A.
Increase the degree of cephalic central ray angle
B.
Decrease the degree of chin tuck
C.
Center the central ray more inferiorly
D.
Increase degree of chin tuck
D.
Increase degree of chin tuck